http://ssd.iykpqm7jiradoeezzkhj7c4b33g4hbgfwelht2evxxeicbpjy44c7ead.onion/ps/module/guide-pratique-utiliser-signal-pour-ios
From this screen, you can send end-to-end encrypted text, picture, stickers, audio, or video messages. How to Initiate an Encrypted Call To initiate an encrypted video call to a contact, select that contact and then tap on the camera icon (1).